AppBaseJs 类库 网上常用的javascript函数及其他js类库

/*-----------------------------------
Web Application JavaScript Library
2009.11 janchie
------------------------------------*/

//String原生对象扩展 置空左右端空格
String.prototype.trim = function(){
return this.replace(/(^[\s\n\t\r]*)|([\s\n\r\t]*$)/g, "");
};
//Date原生对象扩展 格式化输出
Date.prototype.format = function (string) {
var self = this;
var p = function p(s) {
return (s.toString().length == 1) ? "0" + s : s;
};
return string ? string.replace(/dd?d?d?|MM?M?M?|yy?y?y?|hh?|HH?|mm?|ss?|tt?|zz?z?/g,
function (string) {
switch (string) {
case "hh": return p(self.getHours() < 13 ? self.getHours() : (self.getHours() - 12));
case "h": return self.getHours() < 13 ? self.getHours() : (self.getHours() - 12);
case "HH": return p(self.getHours());
case "H": return self.getHours();
case "mm": return p(self.getMinutes());
case "m": return self.getMinutes();
case "ss": return p(self.getSeconds());
case "s": return self.getSeconds();
case "yyyy": return self.getFullYear();
case "yy": return self.getFullYear().toString().substring(2, 4);
case "dddd": return self.getDayName();
case "ddd": return self.getDayName(true);
case "dd": return p(self.getDate());
case "d": return self.getDate().toString();
case "MMMM": return self.getMonthName();
case "MMM": return self.getMonthName(true);
case "MM": return p((self.getMonth() + 1));
case "M": return self.getMonth() + 1;
case "t": return self.getHours() < 12 ? Date.CultureInfo.amDesignator.substring(0, 1) : Date.CultureInfo.pmDesignator.substring(0, 1);
case "tt": return self.getHours() < 12 ? Date.CultureInfo.amDesignator : Date.CultureInfo.pmDesignator;
case "zzz":
case "zz":
case "z": return "";
}
}) : this.toString();
};
/*------------------------------------*/

//声明对象
var App = {};
//对象继承或属性合并
App.extend = function(obj, hash) {
this.each(hash, function(key, value) {
obj[key] = value;
});
return obj;
};
//遍历
App.each = function(obj, func, context) {
var length = obj.length, i = -1;
if(length !== undefined) {
while(++i < length) if(func.call(context, obj[i], i, obj, length) === false) break;
}
else for(var key in obj) if(obj.hasOwnProperty(key)) if(func.call(context, key, obj[key], obj) === false) break;
return obj;
};
(function(doc, win){
var string = Object.prototype.toString,
quirks = doc.compatMode === "BackCompat",
docelem = doc.documentElement,
ua = win.navigator.userAgent.toLowerCase(),
version = (ua.match( /.(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [])[1],
isChrome = /chrome/.test(ua),
isWebKit = /webkit/.test(ua),
isSafari = !isChrome && isWebKit,
isOpera = /opera/.test(ua),
isIE = /msie/.test( ua ) && !isOpera,
isFF = /firefox/.test(ua);
//Dom加载
doc.ready = function(func) {
var isReady = false,doReady = function() {
if (isReady) return;
isReady = true; func();
};
if (isIE) {
if (docelem.doScroll && win.self == win.top) {
(function() {
if (isReady) return;
try {
docelem.doScroll("left");
} catch (error) {
setTimeout(arguments.callee, 0);
return;
}
doReady();
})();
}else {
if (isReady) return;
this.attachEvent("onreadystatechange", function() {
if (doc.readyState === "complete") {
doc.detachEvent("onreadystatechange", arguments.callee);
doReady();
}
});
}
win.attachEvent('onload', doReady);
}else if (isWebKit && version < 525) {
(function() {
if (isReady) return;
if (/loaded|complete/.test(doc.readyState))
doReady();
else
setTimeout(arguments.callee, 0);
})();
win.addEventListener('load', doReady, false);
}else {
if (!isFF)
this.addEventListener("DOMContentLoaded", function() {
doc.removeEventListener("DOMContentLoaded", arguments.callee, false);
doReady();
}, false);
this.addEventListener('load', doReady, false);
}
};
App.extend(App,{
//类型检测
isArray: function(v) { //是否为数组
return string.apply(v) === "[object Array]";
},
isFunction: function(v) { //是否为函数体
return string.apply(v) === "[object Function]";
},
isNumber: function(v) { //是否为数字
return typeof v === "number" && isFinite(v);
},
isDate: function(v) { //是否为日期
return string.apply(v) === "[object Date]";
},
isElement: function(v) { //是否为Dom元素节点
return !!(v && v.nodeType === 1);
},
// 浏览器检测
isOpera: isOpera,
isChrome: isChrome,
isWebKit: isWebKit,
isSafari: isSafari,
isIE: isIE,
isFF: isFF,
isQuirks:quirks,
getVersion:version,

//取id元素
$: function(id) {
return typeof id === "string" ? doc.getElementById(id) : id;
},
//取name元素集合
$N:function(name){
return doc.getElementsByName(name);
},
//取tag元素集合
$T:function(tag, root){
return (root || doc).getElementsByTagName(tag);
},
//按属性名(是否包含)、值、范围取元素集合
$A:function(attrName, attrValue, tag, root){
var elems = doc.all ? doc.all : this.$T( tag || "*",root || doc), result = [],
attVal = (typeof attrValue != "undefined")? new RegExp("(^|\\s)" + attrValue + "(\\s|$)") : null;
for(var i=0; i<elems.length; i++){
attr = elems[i][attrName] || elems[i].getAttribute(attrName);
if(typeof attr === "string" && attr.length > 0){
if(typeof attrValue === "undefined" || (attVal && attVal.test(attr))){
result.push(elems[i]);
}
}
}
return result;
},
//取body元素
$B: doc.body || docelem,
//取Class属性元素集合
$C:function(attrValue, tag, root){
return this.$A("className",attrValue, tag, root);
},
//取浏览器窗体宽度
getWinWidth: win.innerWidth || docelem.clientWidth || doc.body.clientWidth,
//取浏览器窗体高度
getWinHeight: win.innerHeight || docelem.clientHeight || doc.body.clientHeight,
//取元素样式
getStyle: function(elem,name){
if(elem.style[name]){
return elem.style[name];
}else if(elem.currentStyle){
return elem.currentStyle[name];
}else if(doc.defaultView && doc.defaultView.getComputedStyle){
name = name.replace(/([A-Z])/g,"-$1");
name = name.toLowerCase();
var s = doc.defaultView.getComputedStyle(elem,"");
return s && s.getPropertyValue(name);
}else{
return null;
}
},
//获取元素屏幕坐标值
getPosition: function() {
return docelem.getBoundingClientRect && function(o){
var pos = o.getBoundingClientRect(), root = o.ownerDocument || o.doc;
return {left:pos.left+root.documentElement.scrollLeft,top:pos.top+root.documentElement.scrollTop};
} || function(o){
var x = 0, y = 0;
do{x += o.offsetLeft;y += o.offsetTop;}while((o=o.offsetParent));
return {left:x,top:y};
};
}(),
//设置透明度
setOpacity: function (elem,num){
if(elem.filters){
elem.style.filter = "alpha(opacity="+num+")";
}else{
elem.style.opacity = num/100;
}
},
//隐藏或显示元素
hide: function(elem){elem.style.display = "none";},
show: function(elem){elem.style.display = "block";},
toggle: function(elem){
elem.style.display = this.getStyle(elem,"display") === "none" ?"block":"none";
},
//元素Class属性操作
addClass: function(elem, clsName) {
if (elem.className === '') {
elem.className = clsName;
}else if (elem.className !== '' && (' ' + elem.className + ' ').indexOf(' ' + clsName + ' ') === -1) {
elem.className = elem.className + ' ' + clsName;
}
},
removeClass: function(elem, clsName) {
if (clsName && (' ' + elem.className + ' ').indexOf(' ' + clsName + ' ') > -1) {
elem.className = (' ' + elem.className + ' ').replace(' ' + clsName + ' ', ' ').replace(/^ | $/g,'');
}
},
//追加Html文本对象( 支持Table )
append: function(elem, text) {
if (typeof text === "string") {
if (elem.insertAdjacentHTML){
if (elem.tagName === "TABLE"){
var html = elem.outerHTML,ep = elem.parentNode,sl = html.length;
text = html.substr(0,sl-8) + text + html.substr(sl-8,sl);
ep.insertAdjacentHTML("beforeEnd", text);
ep.replaceChild(ep.lastChild,elem);
}else{
elem.insertAdjacentHTML("beforeEnd", text);
}
}else {
var rlt = null, rg = doc.createRange(), fm = rg.createContextualFragment(text);
rlt ? elem.insertBefore(fm, rlt) : elem.appendChild(fm);
}
}else if (typeof text === "object") elem.appendChild(text);
},
//删除元素
remove:function(elem){
if (elem.parentNode) elem.parentNode.removeChild(elem);
},
//置空元素内容及子节点
empty:function(elem){
while(elem.firstChild){
elem.removeChild(elem.firstChild);
}
},
//图像预加载
loadimages: function(){
var a = arguments,loads = function(){
if(doc.images){ if(!doc.ps) doc.ps = [];
var i,j=doc.ps.length; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ doc.ps[j] = new Image; doc.ps[j++].src=a[i];}}
};
arguments.callee.caller ? loads():doc.ready(loads);
},

//事件绑定
bind: function () {
if (win.addEventListener) {
return function(elem, sType, fnc) {
elem.addEventListener(sType, fnc, false);
};
} else if (win.attachEvent) {
return function(elem, sType, fnc) {
elem.attachEvent("on" + sType, fnc);
};
} else {
return function(){};
}
}(),
//解除事件绑定
unbind: function(elem, sType, fnc){
if(elem.removeEventListener){
elem.removeEventListener(sType, fnc, false);
}else if(elem.detachEvent){
elem.detachEvent("on" + sType, fnc);
}else{
elem["on"+ sType] = null;
}
},
//禁止事件冒泡
stopPropagation: function(ev) {
if (ev.stopPropagation) {
ev.stopPropagation();
} else {
ev.cancelBubble = true;
}
},
//禁止默认事件动作
preventDefault: function(ev) {
if (ev.preventDefault) {
ev.preventDefault();
} else {
ev.returnValue = false;
}
},
//获取鼠标位置
getXY: function(ev){
return {
x:ev.pageX ? ev.pageX : ev.clientX + docelem.scrollLeft,
y:ev.pageY ? ev.pageY : ev.clientY + docelem.scrollTop
};
},
//绑定拖动事件
drag: function (obj, obj2){//obj：移动的对象 obj2：拖动点
obj2 = obj2 || obj; //如果不设拖动点，那么拖动点即移动的对象
var x, y, ut = this;
obj2.onmousedown = function(e){
e = e || win.event;
ut.preventDefault(e);
obj.setCapture && obj.setCapture();
x = ut.getXY(e).x - parseInt(obj.style.left);
y = ut.getXY(e).y - parseInt(obj.style.top);
docelem.onmousemove = over;
docelem.onmouseup = up;
}
function over(e){
e = e || win.event;
obj.style.left = ut.getXY(e).x - x + "px";
obj.style.top = ut.getXY(e).y - y + "px";
}
function up(){
obj.releaseCapture && obj.releaseCapture();
docelem.onmousemove = null;
docelem.onmouseup = null;
}
},
//绑定横向滚动事件
sliderX : function (obj,x1,x2,overEvent,upEvent){
var x, t , ut = this;
obj.onmousedown = function (e){
e = e || win.event;
ut.preventDefault(e);
obj.setCapture && obj.setCapture();
t = ut.getXY(e).x - parseInt(obj.style.left);
docelem.onmousemove = over;
docelem.onmouseup = up;
}
function over(e){
e = e || win.event;
x = ut.getXY(e).x - t;
if(x<x1) x=x1;
if(x>x2) x=x2;
obj.style.left = x + "px";
overEvent && overEvent(x);
}
function up(){
obj.releaseCapture && obj.releaseCapture();
docelem.onmousemove = null;
docelem.onmouseup = null;
upEvent && upEvent(x);
}
},
//绑定竖向滚动事件
sliderY : function (obj,y1,y2,overEvent,upEvent){
var y, t , ut = this;
obj.onmousedown = function (e){
e = e || win.event;
ut.preventDefault(e);
obj.setCapture && obj.setCapture();
t = ut.getXY(e).y - parseInt(obj.style.top);
docelem.onmousemove = over;
docelem.onmouseup = up;
}
function over(e){
e = e || win.event;
y = ut.getXY(e).y - t;
if(y<y1) y=y1;
if(y>y2) y=y2;
obj.style.top = y + "px";
overEvent && overEvent(y);
}
function up(){
obj.releaseCapture && obj.releaseCapture();
docelem.onmousemove = null;
docelem.onmouseup = null;
upEvent && upEvent(y);
}
},
//设置cookie
setCookie:function(n, v, t){
var exp = new Date();
exp.setTime(exp.getTime() + (t||24)*60*60*1000);
doc.cookie = n + "="+ escape(v) + ";expires=" + exp.toGMTString()+';path=https://www.jb51.net/';
},
//获取cookie
getCookie:function(n){
var arr = doc.cookie.match(new RegExp("(^| )"+ n +"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]);
return null;
}
});
})(document,window);

//日期字符串格转日期
App.parseDate = function(date){
var dt = date instanceof Date ? date: Date(date.replace("-","https://www.jb51.net/"));
return isNaN(dt.getTime()) ? null : dt ;
};
//Json字符串转对象
App.parseJSON = function(jsonString) {
var result = false;
try {
result = eval('(' + jsonString + ')');
}catch (e) {};
return result;
};
//取不重复唯一值
App.getUid = function(){
return "uid"+(new Date()).getTime()+ parseInt(Math.random()*100000);
};
//获取指定范围的随机数
App.random = function (n1, n2){
return Math.floor(Math.random()*(n2-n1+1)) + n1;
};
//秒转换为毫秒
App.s2ms = function (str){
var t = str.split(":");
return t[0] * 60000 + t[1] * 1000;
};
//毫秒转换为秒
App.ms2s = function (ms){
return (ms/60000+":"+ms/1000%60).replace(/\.\d+/g,"").replace(/(^|:)(\d)(?!\d)/g,"$10$2");
};
//数字转换为编号
App.num2number = function (num, n){
return Array(n).join("0").concat(num).slice(-n);
};
//数字转化为中文
App.num2gb = function (n){
return "零一二三四五六七八九".split("")[n];
};
//Flash生成代码
App.getFlash = function (url, width, height, param){
var tagName = "", o1 = {width:width||1, height:height||1}, o2 = {};
if (this.isIE){
tagName = "object ";
o1.classid = "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000";
o1.codebase = "http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=10,0,0,0";
o2.movie = url;
o2.quality = "high";
param && this.extend(o2, param);
}else{
tagName = "embed ";
o1.type = "application/x-shockwave-flash";
o1.pluginspage = "http://www.adobe.com/go/getflashplayer_cn";
o1.src = url;
o1.quality = "high";
param && this.extend(o1, param);
}
if(o1.width<2&&o1.height<2) tagName+='style="position:absolute; top:-100px;" ';
var a1=[], a2=[], i;
for(i in o1) a1.push(i+'="'+o1[i]+'"');
for(i in o2) a2.push('<param value="'+o2[i]+'" />');
return '<'+tagName+a1.join(' ')+'>'+a2.join('')+'</'+tagName+'>';
};
//播放器生成代码
App.getPlayer = function (url, width, height, param){
var wmp = ["6bf52a52-394a-11d3-b153-00c04f79faa6","application/x-mplayer2"];
var rmp = ["CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA","audio/x-pn-realaudio-plugin"];
var mp = /\.rm$/.test(url) ? rmp : wmp;
var tagName = "", o1 = {width:width||1, height:height||1}, o2 = {};
if (this.isIE){
tagName = "object ";
o1.classid = "clsid:"+mp[0];
o2.url = url;
param && this.extend(o2, param);
}else{
tagName = "embed ";
o1.type = mp[1];
o1.src = url;
param && this.extend(o1, param);
}
if(o1.width<2&&o1.height<2) tagName+='style="position:absolute; top:-100px;" ';
var a1=[], a2=[], i;
for(i in o1) a1.push(i+'="'+o1[i]+'"');
for(i in o2) a2.push('<param value="'+o2[i]+'" />');
return '<'+tagName+a1.join(' ')+'>'+a2.join('')+'</'+tagName+'>';
};
//获取XMLHttp对象
App.xmlhttp = function (){
if (this.isFF) return new XMLHttpRequest();
var a = ["Msxml2.XMLHTTP.3.0","Msxml2.XMLHTTP","Microsoft.XMLHTTP","Msxml2.XMLHTTP.4.0","Msxml2.XMLHTTP.5.0"];
for (var i=0,l=a.length;i<l;i++){
try{
return new ActiveXObject(a[i]);
}catch(e){}
}
return false;
};
//Get数据
App.get = function (url,callBack){
var x = this.xmlhttp();
x.open("get",url,true);
x.onreadystatechange = function(){
x.readyState==4 && (x.status==0||x.status==200) && callBack(x.responseText);
}
x.send(null);
};
//Post数据
App.post = function (url,arg,callBack){
var x = this.xmlhttp();
x.open("post",url,true);
x.setRequestHeader("Content-Length",arg.length);
x.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
x.onreadystatechange = function(){
x.readyState==4 && (x.status==0||x.status==200) && callBack(x.responseText);
}
x.send(arg);
};